A) increases ionisation of acetic acid
B) decreases ionisation of acetic acid
C) increases ionisation of sodium acetate
D) independent of concentration
Correct Answer: B
Solution :
Sodium acetate is a strong electrolyte and it has an ion \[(C{{H}_{3}}CO{{O}^{-}})\] common with weak\[C{{H}_{3}}COOH\]. Hence, it decrease the ionisation of \[C{{H}_{3}}COOH\] due to common ion effect.
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